Lock and latch mechanism.



No. 833,198.. PATENTBD 00T. 16, i906.

c. J. GALEY L H. G. VUIGHT.

LOCK AND LATCH MECHANISM.

APPLICATION FILED SEPT. 7. 1905.

2 SHEBTSA-SHBET 1.

.Wmam.....fw/PKG-Vfl/W @XR-1744 aoco /QW 110,833,198. PATENTED 0011.16, 1906. c. J. GALEY @L H. G. VOIGHT.

LOCK AND LATCH MEGHANISM.

APPLICATION FILED SBPT.7.1905.

2 SHEETS-SHEET 2.

Snom/tow UNITED STATES PATENT onirica.

CHARLES J. CALEY AND HENRY G. VOIGHT, OF NEW BRITAIN, CONNECTICUT, ASSIGNORS TO RUSSELL & ERWIN MANUFAC- TURING COMPANY, lOF NEW BRITAIN, CONNECTICUTRA COR- PORATION .OF CONNECTICUT.

Specification of Letters Patent.

-Jatented Oct. 1.6, 1906.

Application filed September 7I 1905. Serial No. 277,292.

To all whom it may concern/3 Be it known that we, CHARLES J. CALEY and HENRY G. VoIeHT, citizens of the United States, residing at New Britain, Hartford county, State of Connecticut, have invented certain new and useful Improvements in Lock and Latch Mechanism, of which the following is a full, clear, and exact description. Our invention relates to lock and -latch mechanism, and particularly for communicating doors.

y Theobject of the invention is to provide mechanism which may be em loyed on doors of diierent thicknesses and which may be set from either side by a thumb-turn so as to prevent its being operated from the other side.

The invention consists in improvements the principles of which are illustrated in` the 'accompanying two sheets of drawings. Brieiiy, the mechanism may be said to comprise two plates adapted to the opposite sides of a door, a latch-bolt carried by 'one plate, operating-slides carried by each plate and provided with telescopic connections with one another, knobs carried by each late for operating the n corresponding sli es, f and thumb-turn-controlled dogs carried by the knobs for blockingfthe slides.

Figure 1 is a horizontal section of a mechanism embodying the improvements of our invention. Fig. 2 is a front view ofthe mechanism. Fig. 3 is a view of one side plate with the latch-bolt, operating-slides, and dogging mechanism.- Iig. 4 is a view of the other side plate with latch-slide and .dogging mechanism. Fig. 5 is a perspective view of the dog-operating tumbler. Fig. 6 is apperspective view of one of the dogs. Fig. 7 is a perspective view of a retaining-plate.

1 and 2 represent the side plates adapted to the opposite sides of a door.

3 1s an end plate carried by one side plate and having an opening for the latch-bolt 4.

5 is a latch-slide carried by the plate 1, having `extensions 6 engaging With the roller 7 carried by the latch-bolt 4. 8 is the other latch-slide, telescopically connected to the projecting member 9 bymeans of the perforated extension 10. 5 and 8 are the springs for the latch-slides. The roller 7 being located between the extension 6 and projection 9, carried by the latch-slide 5, causes the latch-bolt 4 to move in and out as the slides are moved in and out. The slides by this connection are dependent upon one another, but may be adjusted with the side plates to doors of different thickness without to the roll-back 15 for operating the lslide 5. 16 is a knob havina shank 17 and roll-backv 18 for o cratin t e slide 8. By this mechanism t e latc -bolt may be retracted by either knob.

19 is a swinging dog held in its normalpohaving a projection 21, ada ted to stand back ofthe shoulder 22 on the s ide 5, as shown'in Fig. 3. In this osition the latch-slide 5 is prevented from being retracted. Similarly the dog 23, ycarried by the plate 2, is pressed` `by the spring 24, so that its pro ection 25 may normally be out of the way of t e shoulder -on the slide 8. i

27 is a thumb-mm1 havin hub 2'8, mounted in the knob 13 and mned to the shank 29 within the knob-shan 14.

sition under pressure of the spring 20 and 3() is a cam-like member rotatable with the l shank 29 and thumb-turn 27. When in the position shown in Fig. 3, this cam 30 enga es 1n a recess or notch 31 in the dog 19 and ho ds.

the dog, so that the projection 21 revents the retraction of the slide 5.4 hen the Ythumb-turn 27 is turned from this position, the dog 19 is released and the stop 21 brought from behind the shoulder 22, so that the slide 5 is Jfree to be retracted.

32 is a retaining-plate carried by the side plate 1 for holding the dog 1 9 and cam 30 in osition when lthe mechanism is removed igrom the door.

ICG

33 is the thumb-turn, having a hub 34.,v l

mounted in the knob 15 and connected to the auxiliary sleeve 35 Within the knob-sleeve 1 7.

i erate the dog 23 to block the slide 8 when desired.

It Will be noted in this construction that .when the door is closed and either slide is do ged itWill be impossible to force the latchboIt 4 back, since it is positively connected to each slide. If the dog 23 is set by the thumbturn 33, blocking the slide 8, the lock cannot be forced by inserting a knife-blade or similar instrument from the opposite side of the door.

What We claim is- 1. In a lock and latch mechanism, the combination of side plates, an end plate carried by one side late, a bolt adapted to be protruded theret rough, a vslide carried by leach side late and connected-to said bolt, a

knob carried by each side Iplate', a roll-back for each knob coacting Wit the corresponding slide, a pivoted spring-pressed dog car.- ried by each side plate, and an operatingcam centered in each knob-shank for moving said dog.

2. In a lock and latch mechanism, the combination of side plates adjustable to and from each other, a latch-bolt,independently- I'Otatable knobscarried by said side plates, inde endentlIy-rotatable thumb-turns carried y said nobs, operative means of connection between said knobs and said latchbolt, and means for dogging the operation of either knob by the operation of the thumbturn in the opposite knob part of said dogging means holding said thumb-turns stationary While the knobs are operated 3. In a lock Yand latch mechanism, the combination of side plates adjustable to and from each other, a latch-bolt carried by one of said side plates, independently-rotatable knobs carried b said side plates, dependently-movable sides carried by said plates for operating said bolt thumb-turns rotatable in said knobs, and mechanism operated thereby for inde endently do ging said slides.

4. In a ock and latc mechanism, side lates adjustable to and from each other, a atch-bolt, knobs carried by said side plates,

means of connection between said knobs and said latch-bolt, thumb-turns having hubs mounted in said knobs independent of each other and dogging mechanism for said latchbolt independently vcontrollable from said thumb turns said knobs being normally movable independently of said thumb-turns.

5. In a lock and latch mechanism, the combination of side plates adapted to the opprosite sides of a doorand adjustable to and om each other, a latch-bolt, a slide carried by each side plate and connected to said bolt, means for retracting said slides, a pivoted spring-pressed dog carried b each side plate, a cam carried by each side p ate and adapted to move the corresponding dog, and independently-operable thumb-turns for operat lng said cams.

6. In a lock and latch ,mechanisrm a pair of recessed side lates adapted to the opposite sides of a oor and adjustable to and from each other, an end plate secured to'one of said side plates, a bolt adapted to protrude through said end plate, two slides connected to said bolt, a dog for each slide, each slide and its corresponding dog being mounted entirely Within one of the side plates, a knob carrled by each sideplate and having a rollback Within the side plate connected to its slide, and a rotatable member carried byA each knob and having a cam Within its side plate coperating with its corres onding dog. p 7. In a lock and latch mec anism, side plates adjustable to doors of different thicknesses, a latch-bolt, a slide carried by each side late, a knob carried by each side plate, a ro -back for each knob cooperating with its corres ondin gslide, a cam centered in each kno roll -Iiaclg and dogging devices adapted to be set by said cams.

8. In a lock and latch mechanism, a side plate, a bolt, a slide carried by the side plate and connected to said bolt, aknob carried by said side plate, a roll-back operable by said knob and adapted to retract said slide and bolt, a dog having a projection adapted to' prevent the retraction of said bolt, a thumbturn mounted in said knob, a cam having a hub centered Within the knob roll-back said cam and hub being removable together from said roll-back and operable by said thumbturn for ,operating sald dog.l

9. In a lock and latch mechanism,. a side TOO plate, an end plate carried thereby, a latcholt adapted to protrude through said end plate, a slide carried by said side plate and connected to said bolt, a knob carried by said side plate, a roll-back' operable bysaid knob and en aging said slide, a thumb turn mounte in said knob, and a cam centered in the knob roll-back and connected to said thumb-turn, a pivoted spring-pressed arm having a projection ada ted to dog said slide, said arm adapte'dto be operated by said thumb-turn cam.

10. In a lock and latch mechanism, a latchbolt, two knobs, a thumb-turn mounted in each knob said knobs being normally movable independently of said thumb-turns, operative means of connection between sald knobs and said bolt, and independently-operable dogging devices adapted'to be operated b said thumb-turns.

11. n a lock and latch mechanism, the combination of lates adapted to opposite sides of a door, a atch-bolt, knobs carried by les? IIO

each side plate, operative means of connection dependently of said thumb-turns and means endently by said thumb-turns e operation of both knobs.

12. n a lock and latch mechanism, a side plate, a bolt, a slide mounted in said side plate and connected to said bolt, a knob having a shank carried by said side plate, a rollback connected to said shank for operating said slide, a dogmounted in said side plate for preventing the retraction of said bolt, a sleeve mounted in said shank, a cam adapted to operate said dog and having a hub connected to said sleeve and rotatable therewith, and a rotatable operatin member carried by said knob having a hu connected to said sleeve.

13. In a lock and latch mechanism, a pair of side plates adapted to the opposite sides of vdoors of different thicknesses, an end plate lcarried by one side plate, a bolt adapted to protrude therethrough, a latch-slide mounted in each side plate, one of said slides havoperable inde for do ging t 'ing an extension engaging said bolt and a rojection, and the other slide having a eribrated portion telescopically connecte to said pro]ection,. knobs carried by said side plates, and aroll-back for each knob coacting with the corresponding slides.

14. In a lock and latch mechanism, a side plate, an end plate, a bolt adapted to protrude therethrough, a slide mountedinthe side plate and connected to said bolt, a knob carried by said side plate, a roll-back therefor lfor retracting said slide and bolt, a springpressed dog for said slide having a notch, and a cam normally held stationary by said 3 5 dog but adapted to be rotated to set said dog and engage 1n said notch.

CHAS. J. CALEY. HENRY G. VOIGHT. Witnesses:

-M. S. WIARD,

C. E. RUSSELL. 

